Book Image

BeagleBone Black Cookbook

Book Image

BeagleBone Black Cookbook

Overview of this book

There are many single-board controllers and computers such as Arduino, Udoo, or Raspberry Pi, which can be used to create electronic prototypes on circuit boards. However, when it comes to creating more advanced projects, BeagleBone Black provides a sophisticated alternative. Mastering the BeagleBone Black enables you to combine it with sensors and LEDs, add buttons, and marry it to a variety of add-on boards. You can transform this tiny device into the brain for an embedded application or an endless variety of electronic inventions and prototypes. With dozens of how-tos, this book kicks off with the basic steps for setting up and running the BeagleBone Black for the first time, from connecting the necessary hardware and using the command line with Linux commands to installing new software and controlling your system remotely. Following these recipes, more advanced examples take you through scripting, debugging, and working with software source files, eventually working with the Linux kernel. Subsequently, you will learn how to exploit the board's real-time functions. We will then discover exciting methods for using sound and video with the system before marching forward into an exploration of recipes for building Internet of Things projects. Finally, the book finishes with a dramatic arc upward into outer space, when you explore ways to build projects for tracking and monitoring satellites.
Table of Contents (16 chapters)
BeagleBone Black Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Toggle LED


In this section, let's do a quick and easy recipe with BoneScript, one that turns on and off the on board LEDs, also known as USR LEDs. We will tackle more complex recipes with BoneScript in the next chapter.

How to do it...

In order to do this, perform the following steps:

  1. Remove all cables and power from your BBB.

  2. Power up your board via the mini USB using your desktop USB port.

  3. On the BEAGLEBONE_BLACK device that appears on your desktop, browse to and open the START.htm file (some versions of the OS may have a slightly different file name, such as BASIC_START.htm).

    Note

    Note that on Debian 8 (Jessie), your board will be labelled BEAGLEBONE on the desktop and not BEAGLEBONE_BLACK.

  4. Scroll down the page to BoneScript interactive guide, where you'll see an embedded script that you can run to interact with BBB.

  5. Click on Run.

  6. All the LEDs should stay on for two seconds. Let them return to blinking.

  7. Now change USR0 from b.HIGH to b.LOW.

  8. Change the timing from 2000 to 12000.

  9. You should now see...